o-Dianisidine Dihydrochloride Equivalent (3,3'-Dichlorobenzidine 2HCl) from Canada
High-purity 3,3'-Dichlorobenzidine dihydrochloride used as o-dianisidine equivalent in pigment manufacturing, classified specifically under HTS 2921.59.80.10. Meets Chapter 29 requirements for chemically defined aromatic polyamine salts.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Reference CAS No. 612-83-9 in commercial invoice and provide synonym cross-reference documentation
• Segregate from finished pigments during import to avoid Chapter 32 reclassification
• Include Material Safety Data Sheet (MSDS) detailing handling as suspected carcinogen